DAVID CAMERON and Nick Clegg will renew their marriage vows tomorrow at a rare joint press conference that puts a united face on the Coalition.

It will be the first conference the Tory Prime Minister and Liberal Democrat Deputy Prime Minister have hosted together since visiting a tractor factory last May.

The event will mark the publication of a mid-term review, which promises to be a “candid” assessment of the Government’s achievements since being elected in 2010.

It will also lay out their vision for the next two years, including reforms in welfare, education, tax and pensions.Both leaders will insist that helping those who work hard to get on is an equal priority.

Originally due to be published last autumn, the review was delayed by Coalition bickering over how to respond to the Leveson Inquiry.

It will be an attempt by both sides to draw a line under the increasingly rancorous rows of 2012, which saw the Liberal Democrats threatening to scupper boundary reviews in a tit-for-tat spat with the Tory backbenchers who torpedoed reform of the Lords.

That will be glossed over in the document which celebrates the Coalition’s achievements, such as the 25 per cent cut in the record deficit left by Labour and the creation of more than a million private sector jobs.

Sweeping welfare reforms, raising state school standards, a rise in tax-free allowance and a crackdown on tax avoidance will also be trumpeted.

So, too, will the reform of public sector pensions, “the biggest cash rise in the state pension”, the 25 per cent cut in net immigration and the three-year council tax freeze.

The conference, to be held after a morning Cabinet meeting, will also be an opportunity for both men to highlight the “flat opposition” of Labour.

They believe Labour leader Ed Miliband has made a tactical mistake in opposing a cap on benefit increases and will accuse Labour of “concentrating on opposition for opposition’s sake”.

They will also outline the themes for the second half of office which will be followed by a series of policy announcements throughout the month.

Downing Street said the Government would “continue to prioritise fixing the economy and reforming welfare and education”.

They believe Labour leader Ed Miliband has made a tactical mistake

The deregulation of childcare, making it more affordable for working families, is thought to be among the flagship policies due to be unveiled.

The Government will also promise to implement in full the recommendations of the Dilnot Review into elderly care.

For all the togetherness on display tomorrow, strains in the united front could emerge this week as MPs vote on plans to cap working age benefits to one per cent for the next three years. Although Liberal Democrats will support the measure, some are uneasy at the willingness of Conservatives to portray some claimants as scroungers.

However, Tory ministers are confident their Coalition partners have misjudged public opinion on this issue and believe they have the support of the vast majority of voters.

Relations could sour further when Mr Cameron later outlines his vision for the future of Britain’s fractious relationship with Europe.

Last week he offered his strongest hint yet that the key speech could include the promise of an in/out referendum in the Tory manifesto in 2015.

He said the speech would “demonstrate very clearly that it is the Conservative Party at the next election that will be offering people a real change in terms of Europe and a real choice about that change in Europe”.